CVE-2019-8767: Apple Mac OS X

Critical severity, CVSS 9.8. EPSS: 1.1% chance of exploitation in the next 30 days.

A memory consumption issue was addressed with improved memory handling. This issue is fixed in macOS Catalina 10.15.1, Security Update 2019-001, and Security Update 2019-006, macOS Catalina 10.15. Processing a maliciously crafted string may lead to heap corruption.

Affected products

• Apple Mac OS X: before 10.15 (fixed in 10.15)

Published 2020-10-27. Last modified 2026-06-17.